Two local startups and the popular Seattle hip-hop group Blue Scholars have teamed up to promote a contest at tonight's Capitol Hill Block party.

The two companies are Phone Sherpa, which handles the Blue Scholars's ringtone sales on the Jamglue site, and Jamglue, which allows users to create their own song by chopping up bits and pieces and adding new vocals.

Together, Phone Sherpa and Jamglue created an MC and DJ contest for making your own mix to the Blue Scholars' song "Fire for the People." Blue Scholars will pick out the best of the mixes made on Jamglue and add them to their ringtone store.

Also, the first thousand Block Party-ers to show up at a special Jamglue Web page where the contest is taking place will get a free Blue Scholars ringtone when they sign up for a Jamglue account.